Flower colour is associated with susceptibility to disease in the legumeSwainsona formosa

2007 ◽  
Vol 36 (4) ◽  
pp. 341 ◽  
Author(s):  
N. Panjehkeh ◽  
D. Backhouse ◽  
A. Taji
Keyword(s):  
Flower Colour

scholarly journals Understanding Alstroemeria pallida Flower Colour: Links between Phenotype, Anthocyanins and Gene Expression

Plants ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 55
Author(s):  
Amanda Donoso ◽  
Constanza Rivas ◽  
Alan Zamorano ◽  
Álvaro Peña ◽  
Michael Handford ◽  
...  
Keyword(s):  
High Performance ◽  
Chalcone Synthase ◽  
Ornamental Plants ◽  
Flower Colour ◽  
Anthocyanin Content ◽  
Anthocyanidin Synthase ◽  
Visual Evaluation ◽  
Royal Horticultural Society ◽  
Polymerase Chain ◽  
Colour Chart

Flower colour is mainly due to the accumulation of flavonoids, carotenoids and betalains in the petals. Of these pigments, flavonoids are responsible for a wide variety of colours ranging from pale yellow (flavones, flavonols and flavanodiols) to blue-violet (anthocyanins). This character plays a crucial ecological role by attracting and guiding pollinators. Moreover, in the ornamental plants market, colour has been consistently identified as the main feature chosen by consumers when buying flowers. Considering the importance of this character, the aim of this study was to evaluate flower colour in the native Chilean geophyte Alstroemeria pallida, by using three different approaches. Firstly, the phenotype was assessed using both a colour chart and a colourimeter, obtaining CIELab parameters. Secondly, the anthocyanin content of the pigmented tepals was evaluated by high-performance liquid chromatography (HPLC), and finally, the expression of two key flavonoid genes, chalcone synthase (CHS) and anthocyanidin synthase (ANS) was analysed using real-time polymerase chain reaction (PCR). Visual evaluation of A. pallida flower colour identified 5 accessions, ranging from white (Royal Horticultural Society (RHS) N999D) to pink (RHS 68C). Moreover, this visual evaluation of the accessions correlated highly with the CIELab parameters obtained by colourimetry. An anthocyanidin corresponding to a putative 6-hydroxycyanidin was identified, which was least abundant in the white accession (RHS N999D). Although CHS was not expressed differentially between the accessions, the expression of ANS was significantly higher in the accession with pink flowers (RHS 68C). These results suggest a correlation between phenotype, anthocyanin content and ANS expression for determining flower colour of A. pallida, which could be of interest for further studies, especially those related to the breeding of this species with ornamental value.

THE CONTRIBUTION OF EPIDERMAL STRUCTURE TO FLOWER COLOUR IN THE SOUTH AFRICAN FLORA

2011 ◽  
Vol 28 (4) ◽  
pp. 349-371 ◽  
Author(s):  
Heather M. Whitney ◽  
Beverley J. Glover ◽  
Rachel Walker ◽  
Allan G. Ellis
Keyword(s):  
South African ◽  
Flower Colour ◽  
The South ◽  
Epidermal Structure ◽  
African Flora

Fritillaria arsusiana (Lilieae, Liliaceae), a new species from southern Anatolia

Phytotaxa ◽  
2021 ◽  
Vol 502 (2) ◽  
pp. 149-159
Author(s):  
HASAN YILDIRIM ◽  
MEHTAP TEKŞEN
Keyword(s):  
New Species ◽  
Geographical Distribution ◽  
Related Species ◽  
Conservation Status ◽  
Flower Colour ◽  
Identification Key ◽  
Critically Endangered ◽  
Diagnostic Characters ◽  
A New Species ◽  
Shape And Size

In this study, Fritillaria arsusiana (Liliaceae) is described and illustrated as a new species from Hatay province in southern Anatolia, Turkey. It is related to F. amana and F. hermonis by habitus features and broadly campanulate flowers, but differs mainly by its bulb shape and size, smaller leaf and flower features, and flower colour. It has also been morphologically compared with F. wendelboi, F. pinardii, and F. latakiensis. The detailed description, diagnostic characters, original photographs, geographical distribution, habitat and phenology, etymology, conservation status, and identification key of the new and the related species are presented in this study. IUCN conservation status of F. arsusiana is suggested as Critically Endangered (CR).

Thrips see red - flower colour and the host relationships of a polyphagous anthophilic thrips

2007 ◽  
Vol 32 (5) ◽  
pp. 527-535 ◽  
Author(s):  
A. YAKU ◽  
G. H. WALTER ◽  
A. J. NAJAR-RODRIGUEZ
Keyword(s):  
Flower Colour ◽  
Host Relationships

scholarly journals Altitudinally coordinated pattern of plant community structure in the Shivapuri National Park, Nepal

1970 ◽  
Vol 18 (1) ◽  
pp. 11-17 ◽  
Author(s):  
Shalik Ram Sigdel
Keyword(s):  
Community Structure ◽  
Species Diversity ◽  
Plant Species ◽  
Plant Community ◽  
National Park ◽  
Climatic Factors ◽  
Flower Colour ◽  
Basal Area ◽  
Plant Community Structure ◽  
Closed Canopy

Study on plant community structure was undertaken in different altitudinal ranges of Shivapuri National Park. The general objective of this study is to analyse different plant community structure in Shivapuri National Park with regards to altitudinal variation. The forest was divided into three distinct altitudinal ranges on the basis of dominancy. In each altitudinal range standard quadrats method was applied for vegetation analysis. The highest number of species was found in site II. All the ecological parameters of the plant species were higher in site II except Basal Area of tree that was highest in site III. The pattern of distribution of plant species was not uniform according to altitude. At higher elevation, the forest was mature with almost closed canopy and trees were large; so the tree density was low. Species richness was highest in site II. Species diversity among tree and shrub species was higher in site I. But for herb species diversity was higher in site II for both seasons. Such type of variations may be due to nature of soil i.e. acidity, nutrient availability and other micro-climatic factors. The most noteworthy thing was that variation in flower colour of Rhododendron arboreum i.e. deep scarlet at low altitude, but it gradually changed into pinkish white as altitude increased. Key words: Altitude, Density, Plant community, Species diversity doi: 10.3126/banko.v18i1.2161 Banko Janakari, Vol. 18, No. 1, 11-17

scholarly journals Lagerstroemia for Urban Landscapes in India

2019 ◽  
Author(s):  
R.K. Roy ◽  
J.S. Khuraijam ◽  
Shilpi Singh
Keyword(s):  
Green Space ◽  
Road Traffic ◽  
Critical Role ◽  
Flower Colour ◽  
Urban Green Space ◽  
Urban Landscapes ◽  
Good Growth ◽  
Urban Green ◽  
The Road ◽  
Drought Tolerant

Landscapes and urban green space plays a critical role for keeping our cities attractive and healthy. Lagestroemias are among the best flowering trees for urban landscapes due to interesting growth, long blooming period and attractive flowers during summer. They grow well in different agro-climatic condition and drought tolerant. These plant species are selected for plantation in central verge, along the road, traffic island and urban green space because they have a capacity to tolerate dust, automobile fumes and have moderate efficiency to absorb air pollution. Moreover, the plants which are used for landscaping should have a good growth habit, flowering and striking flower colour. Lagerstroemia species have all these characters and create attraction while moving through the roads, parks, avenue plantation. In the present paper, prospect and utility of five species of Lagerstroemia for urban landscaping are discussed.

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